Scan did the same thing to me. Then charged me an illegal restocking fee.

Years ago (like 10) they had a board on their website. I phoned their premium number to check it would work with my CPU, they say yes. I ask them to update the bios in house to make sure, they say yes.

I order, it arrives and doesn't work. I pay £8 to send it back and they charge me a restocking fee of £15.

That's the last time I ordered from there. Say anything to get sale, do nothing. Ebuyer are the same too it's OCUK you want dude. They're awesome.

As disgusting as it sounds. Its not illegal. Basically they are saying that the time taken to return your product to the shelf, edit the system database stock levels, and refund your purchase, means they lose time "picking" another product for another customer and sending it out.

I popped the 200ge back in with the 5700 and managed to get that working, although it revs the fan on the gpu a few times before booting, seems to take a while to start...

Anyway, double checked the bios and it was 3004, I assume it was ok to go from whatever it shipped with straight to this version.

3600 goes in and it won't post.

I don't know why, but I feel like it is a bios issue. I'll have to contact the vendor to get an RMA started because the gpu and everything else seems to work. The ram is some corsair 'ryzen optimised' stuff which I thought was just marketing BS but I went with it to be on the safe side.

Was about to RMA the 3600 and decided to pull a stick of ram out as a final attempt, not expecting it to work as I'd done it previously. Anyway, after lots of fans revving and sort of boot looping it went to desktop with just 16gb, the other is sat on the side.

Good news cpu and gpu are fine so thanks for all the help, especially alienalx.

Edit- just to be clear both sticks (32gb) worked and were recognised with the 200GE in

The ram is ryzen optimised so I don't know what to do now. I'll keep looking but hopefully one of you will chime in and save me again

From my own experience (hands on that is) B450/X470 boards are very very choosy as to which CPU and memory kit combinations actually do work together; this problem has been pretty much overcome with the 5 series boards ironically.